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All results from a given calculation for CO (Carbon monoxide)

using model chemistry: B3PW91/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at B3PW91/CEP-121G
 hartrees
Energy at 0K-21.584574
Energy at 298.15K-21.583321
HF Energy-21.584574
Nuclear repulsion energy10.879548
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3PW91/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2013 1927 88.15      

Unscaled Zero Point Vibrational Energy (zpe) 1006.4 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 963.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3PW91/CEP-121G
B
1.80430

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.667
O2 0.000 0.000 0.500

Atom - Atom Distances (Å)
  C1 O2
C11.1674
O21.1674

picture of Carbon monoxide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.023      
2 O -0.023      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.065 0.065
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.101 0.000 0.000
y 0.000 -10.101 0.000
z 0.000 0.000 -12.869
Traceless
 xyz
x 1.384 0.000 0.000
y 0.000 1.384 0.000
z 0.000 0.000 -2.768
Polar
3z2-r2-5.536
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.287 0.000 0.000
y 0.000 1.287 0.000
z 0.000 0.000 2.171


<r2> (average value of r2) Å2
<r2> 10.167
(<r2>)1/2 3.189